Balance



Feb. 17. 1925. 1,526,569

H. P. sAcHsE BALANCE Filed Feb. 19, 1923 2 Sheets-Sheet l Feb. 17; 1925.

H. P. SACHSE BALANCE Filed Feb. 19, 1925 2 Sheets-Sheet 2.

i ermcz Patented Feb. 17, 1925.

NIT-ED 'miraar oFF-ics.

4VI-lE'LlVlAN `PAUL lSACI-ISE,"OIF'lCI-IILLGO, ILLINOIS. yASSGrNOR TO CEN-TR'AL SCIENTIFIC 00.', O-FCHIGAGQ'ILLINQIS, AzCOERPORATON OF ILLINOIS.

' BALANCE.

.Applicatoniled.February 19, 1923. Serial No. 619,816.

T0 ,all whom` 'it may concern:

SAGHSE, .a citizen :of the '.United States, and

resident of Chicago, inthe-county of Cook -andiStaterof -llinoimhave invented a certa-in new( and useful .Improvement 'fin Balances,.i.ofwhich'the followingis affull, clear, concise, and ,exact description, ,reference being yhad to ,the accompanying drawings, lforming a .part 'of Ithis y specification.

-My .invention relates .to a .laboratory .bal-

-ance ofthe typeA comprising pan supporting hangers which are pivotally.mountedupon 'the ends of `a--eentrally pi-voted beam, fand which are arranged to maintain the ,pans` in :horizontal planes, irrespective Oftheinclib nation of the beam; the present invention being particularly `concerned with certain limprovements vinithe ,construction of the hangers land their ,associated parts.

Each ofthe hangers forming :part of .the balance herein-shown and. described. isjpreflferably formed -in-one piece, yconveniently by a pdie casting operation, and iseonformed to,

provide a pooket .forfshot, which is employed ,in giving .the balance 'its yoriginal i adj ustment.

1 and for .correcting its. adjustment, when required. i that they are at :all times accessible, even.

These shot pockets areso Ilocated 1whenxthe pans-are in position upon theihangers, fthis being a feature .of decidedv advan- -gtage because permitting any .difference be- `tween the weights of thepans remployed lto 'be Icompensated for by-fthefshot, and valso permittingt=he `pans to Asupport the :shot

'..pocket-closing devices when the shot pockets.

f vare yopened yfor the purpose 'of effecting a.

proper diaision of shot therebetween.

These .and other features, |objects, and .advantages of fmy present Iinvention will vappear from the following "detaileddescription, wherein reference is made to the ac- -companying` drawings7 in which- Figure 1 is a top plan View Tof-my improved balance, with one ypan removed;

Figure '2 is a front .elevational view of the balance.; f

Figure 3 is a. verticali vsection taken online 3-3 .of Figure 2, and `looking inthe direction indicated by the arrows, and

Figure et is a ycentralA longitudinal section, illustrating the shot .pockets open, and

Acharacter .10 vindicates `base which comprises y19v-12 'which arel located `mounted the usual graduated scale 23 v `the shot pocket-closing devices carried upon .Be it .known .that I, .HERMAN PAUL "tl re pans.

Similar characters of reference refer to similar parts throughout the several views.

Referring `to the dra-wings, reference an elongated hollow the central .pillar l1 and th'evupwardly projecting hollow bosses at the ends of the base. Pillar 11 is bifurcated atl its upper end, asindicated at 13, to embrace and support the tilt-ing beam 11i, which is convenient-ly, but not necessarily, cast'in one piece. It Imay be explained `that the beam is preferably provided with lmife-edge trunnions earing in V-shaped notches in vblocl-:s of suit-able bearing material (not shown), which are cemented in, or otherwise carried by, rthe upper extremities of the bifurcated .have notbeen illustra-ted in detail.

Carried by one of the upper extremities .of 'the pillar 11., and projecting upwardly andV forwardly therefrom, is a. metal yplate l5 which, atits upperend.. is provided with a deflection scale 16 with which cooperates apointer' 1T, the latter' being` fixed to the beam '14v Vat its central point.

The lpointer 17 is'preferably struck from sheet metal and.

.ashere shown, carries a screw 18 whercon .1s mounted a nut 19 which, by adjusti'nent relative to the axis of the beam, may he vutilized toimake minor corrections, in the `usual manner.

Disposed within the hollow .base 10 and conveniently anchoredin the pillar 11 is a screw 2O having a bifurcated lower end to 'whiclrare pivoted the adjacent ends of a ipairof rlinks 21-21, the .other E'ends of said links being pivoted to the lower endsof the .hangers presently 'to be described.

. `Beam 14 is provided with a'pa'ir of forwardly projecting bosses 22 whercon is vupon which a. balancing weight 24 is a slidably mounted.

As .thus far "described, my improved baslanceneed :not differ :materially in construction from generally similar balances Cir well known prior to the advent of my present invention.

I shall now proceed todescribe the improved hangers which embody the salient features of the present invention. Each of the hangers, illustrated as a whole at 25, is preferably formed in one piece by a die casting operation, and comprises a circular cup 26 provided with an internally threaded central boss 27. Projecting downwardly from the cup 26 is an arm 28 which, when the balance is assembled, extends through one of the hollow base bosses v12 and has its lower end pivotally attached to one o-f the links 21-21, to which reference has previously been made see. Figures 3 and 4). Diverging upwardly from the. cup 26 are the arms 29-29 which, at 304-30, are recessed to receive blocks k'3b-3l of suitable hard material, the blocks 31-31 being provided with downwardly opening Vshaped notches for co-operation with the upwardly presented edges of bearing trunnions 33--33 which project laterally from and are formed integral with the beam 14. f

It will thus be seen that each of the hangers is pivotally mounted upon one end of the beam, but is at all times held in a substantially vertical position,'regardless of the inclination of the beam, by virtue of its associated link 21. The arms 29-29 ter minate in the pan support 34 which has a fiat upper surface 35, is preferably apertured at 36, and is provided with four radial ears 37'37, each of which is provided on its under side witha rib 38. VEmbracing Veach of the ribs 38is a bifurcated clip 39 provided with an upturned outer en'd adapted to embrace the periphery of a pan 40 which rests upon the upper surface 35 of the pan support. The clips 39 are held in adjusted position by screws 4l. Pans 40 are preferably circular and of uniform thickness, and may be formed of porcelain, glass, or other suitable material.

Each of .the'hanger cups 26 constitutes a receptacle for a quantity of shot illustrated at 42. The said cups or shot receptacles are normally closed by centrally apertured discs 43 which find suitable seats in the cups and are held in position by screws 44 engaging in the internally threaded bosses 27.

It will be noted that the cups 26 are readily accessible even when the pans 40 are fixed upon the hangers. This is a feature of decided advantage. In prior balance constructions wherein shot has been employed as a means for compensating for differences between the aggregateweights of those parts of the balance carried upon opposite sides of the beam pivot, ithas always been necessary to take the weight of some normal part of the device off the beam in order to obtain access to the shot pockets. Thus, in certain prior constructions, it has been necessary to remove the pans in order to obtain accessY to the shot receptacles. Y Such constructions are disadvantageous because the removal and replacement of the pans involve considerable loss of time, and are further disadvantageous because no distribution of shot with the pans removed can compensate for a difference between the weights of the pans In utilizing the shot properly to adjust my improved balance, the discs 43 and screws 44 are merely removed from the cups 26 and are placed upon the pans 40, as is clearly illustrated in Figure 4. lVith the nut L9 occupying the central position upon screw 18, the beam is brought to a perfect balance by a proper distribution of shot between the cups 26. The discs 43 and screws 44 may then be replaced with the assurance that the balance of the instrument will not be disturbed by the replacement of these parts, notwithstanding the fact that the combined weight of the disc and screw applied to one of the cups may differ from the combined weight of the disc and screw applied to the other cup.

Having thus illustrated and described my invention, what I claim is new and desireV to secure by Letters Patent of the United States is: Y

l. In a balance and in combination, a

beam pivoted l intermediate its ends for movement around a horizontal axis; hangers carried upon the ends of said beams; each of said hangers comprising a cup located a substantial distance below the beam, a pair o-f separated arms rising from said cup, embracing the adjacent end of the beam and extending above the latter, said arms being pivoted to said beam and having their upper ends connected by a pan support; pans disposed on the pan supports; closures for the hanger cups adapted to be removed therefrom and to be placed upon the pan-s when the instruJ ment is adjusted by distributing shot between said cups; each hanger comprising an arm extending downwardly from the cup portion thereof; and links connected with said last mentioned arms adapted to maintain said pans substantially horizontal regardless of the inclination of the beam.

. In a balance and in combination, a beam pivoted intermediate its ends for movement around a horizontal axis; hangers associated with the ends of said beam; knife-edge pivot devices whereby said hangers are pivoted to said beam; each of said hangers comprising a pair of vertically extending arms lying on opposite sides of the beam and extending above and below the latter, a pan support overlying the beam and formed integral with said arms, a shot cut lying a substantial distance below the beam and formed integral with the lower ends of said arms, a removable closure for said cup; pans' carried by the pan supports; and linls co-operating With said hangers adapted to maintain said pans substantially horizontal regardless of the inclination of the beam.

3. In a balance and in combination, a beam pivoted intermediate its ends for move-ment around a horizont-al axis; a pair of pans disposed over the extremities of said beams; a pair of hangers by which said pans are carried; each of said hangers comprising a pan support, three arms, and a shot receptacle, all formed in one piece, the pan support lying above the beam, two of the arms extending downwardly from the pan support alongside the beam and being pivoted to the latter for relative movement around a horizontal axis, said arms extending a substantial distance below thel beam and joining the shot cup, the other arm eX tending downwardly from the shot cup removable elosures tor said shot cups, and means associated with those hanger arms which project downwardly from the shot cups adapted to maintain the pan supports substantially horizontal regardless of the inclination of the beam.

4. In a balance, a beam pivoted intermediate its ends for movement around a horizontal axis, pans disposed over the extremities of said beam, and means for supporting said pans comprising a pair of hangers, each pivoted to one. end of the beam, and each provided With a shot pocket Wholly located beneath the beam, closures for said shot pockets also Wholly located beneath the beam, said closures being independent of the pans and accessible for removal Without removing the. hangers from the beam or the pans from the hangers.

In witness whereof, I hereunto subscribe my name this li day of February, 1923.

HERMAN PAUL SACI-ISE. lVitnesses ANNA CONNELL, HELEN WITT. 

